Home / 9,666.07-13,346.72-7,424.40

Finding the Fourth Proportional to 9,666.07, 13,346.72 and 7,424.40

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Solution

The fourth proportional to 9,666.07, 13,346.72 and 7,424.40 is: 10,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,666.07 : 13,346.72 = 7,424.40 : x
  2. Step 2: Convert to fraction form
    9,666.07/13,346.72 = 7,424.40/x
  3. Step 3: Cross multiply
    9,666.07x = 13,346.72 × 7,424.40
  4. Step 4: Simplify right side
    9,666.07x = 99,091,284.11
  5. Step 5: Solve for x
    x = 99,091,284.11/9,666.07
  6. Step 6: Final answer
    x = 10,251.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.